While the terms jam, jelly, preserves ... One popular variety is membrillo, a.k.a. quince paste. This thick jelly is made by slowly cooking quince with sugar and water until it takes on a gummy ...

Quince has a ton of natural pectin, ideal for creating a lovely rosy-hued jam or jelly. In fact, the term marmalade comes from Portuguese marmelada, a preserve that is traditionally made from ...